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Diffstat (limited to 'drivers/firmware/arm-ffa/arm-ffa.c')
-rw-r--r--drivers/firmware/arm-ffa/arm-ffa.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/drivers/firmware/arm-ffa/arm-ffa.c b/drivers/firmware/arm-ffa/arm-ffa.c
deleted file mode 100644
index 68df75bd9e5..00000000000
--- a/drivers/firmware/arm-ffa/arm-ffa.c
+++ /dev/null
@@ -1,104 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- *
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
- */
-
-#include <common.h>
-#include <arm_ffa.h>
-#include <arm_ffa_priv.h>
-#include <dm.h>
-#include <log.h>
-#include <asm/global_data.h>
-#include <dm/device-internal.h>
-#include <linux/errno.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/**
- * invoke_ffa_fn() - SMC wrapper
- * @args: FF-A ABI arguments to be copied to Xn registers
- * @res: FF-A ABI return data to be copied from Xn registers
- *
- * Calls low level SMC assembly function
- */
-void invoke_ffa_fn(ffa_value_t args, ffa_value_t *res)
-{
- arm_smccc_1_2_smc(&args, res);
-}
-
-/**
- * arm_ffa_discover() - perform FF-A discovery
- * @dev: The Arm FF-A bus device (arm_ffa)
- * Try to discover the FF-A framework. Discovery is performed by
- * querying the FF-A framework version from secure world using the FFA_VERSION ABI.
- * Return:
- *
- * true on success. Otherwise, false.
- */
-static bool arm_ffa_discover(struct udevice *dev)
-{
- int ret;
-
- log_info("Arm FF-A framework discovery\n");
-
- ret = ffa_get_version_hdlr(dev);
- if (ret)
- return false;
-
- return true;
-}
-
-/**
- * arm_ffa_is_supported() - FF-A bus discovery callback
- * @invoke_fn: legacy SMC invoke function (not used)
- *
- * Perform FF-A discovery by calling arm_ffa_discover().
- * Discovery is performed by querying the FF-A framework version from
- * secure world using the FFA_VERSION ABI.
- *
- * The FF-A driver is registered as an SMCCC feature driver. So, features discovery
- * callbacks are called by the PSCI driver (PSCI device is the SMCCC features
- * root device).
- *
- * The FF-A driver supports the SMCCCv1.2 extended input/output registers.
- * So, the legacy SMC invocation is not used.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static bool arm_ffa_is_supported(void (*invoke_fn)(ulong a0, ulong a1,
- ulong a2, ulong a3,
- ulong a4, ulong a5,
- ulong a6, ulong a7,
- struct arm_smccc_res *res))
-{
- return arm_ffa_discover(NULL);
-}
-
-/* Arm FF-A driver operations */
-
-static const struct ffa_bus_ops ffa_ops = {
- .partition_info_get = ffa_get_partitions_info_hdlr,
- .sync_send_receive = ffa_msg_send_direct_req_hdlr,
- .rxtx_unmap = ffa_unmap_rxtx_buffers_hdlr,
-};
-
-/* Registering the FF-A driver as an SMCCC feature driver */
-
-ARM_SMCCC_FEATURE_DRIVER(arm_ffa) = {
- .driver_name = FFA_DRV_NAME,
- .is_supported = arm_ffa_is_supported,
-};
-
-/* Declaring the FF-A driver under UCLASS_FFA */
-
-U_BOOT_DRIVER(arm_ffa) = {
- .name = FFA_DRV_NAME,
- .id = UCLASS_FFA,
- .flags = DM_REMOVE_OS_PREPARE,
- .ops = &ffa_ops,
-};